What radius

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Just got a 4-8-4 in HO scale. Can some one tell me what the minimum radius is for this engine. What will it run on and what looks realistic. :confused:
 
Just got a 4-8-4 in HO scale. Can some one tell me what the minimum radius is for this engine. What will it run on and what looks realistic. :confused:

What road? Who made it? Could be as little as 18" or as much as 30" we need more info!
 
Doug, it depends on its engineering. If it is brass, probably somewhere near 34". If it is an ABS plastic shell and on an engine costing between $80-$280, as low as 18" if the driver wheels are to scale and the engine is a N&W J Class.

Does the paperwork, if included, not tell you what the minimum radius is?

Maybe set up some flextrack curves, starting with 18", and see if you can get it to run smoothly around such curves forwards and backwards. Even so, will the passenger cars you intend to pull be happy with that radius?

As for realism, that is subjective. Someone very happy to be able to play with a nicely laid out train may find 18" curves are his dream. If you were to poll 100 people at random, no matter how familiar they are with the hobby and scale, you would get a range of answers. However, they would center around something like 28" being the lower end of what looks "realistic". Once you get radiu outward of 36", it looks quite natural.

One last thing: the higher above the curve your vantage point as you watch your tains on the curves, the worse it will seem. As your layout height rises and you find yourself watching as a real person would, trackside, you won't notice the tighter curves so much.

-Crandell
 
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It'll probably negotiate 22" minimum radius, though it'll overhang too much to "look right". They may say on the box or in the instructions what the recommended minimum radius is. Walthers does with their passenger cars.
 
The first issue of the free online magazine, Model Railroad Hobbyist, has a great article about selecting curve radii appropriate for the equipment you are using.
 




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